unit 1 review 25-26

Front

What is the cell theory?

Back

The cell theory states that: 1) All living things are made of cells, 2) Cells are the basic unit of structure and function in living organisms, 3) All cells come from preexisting cells.

Front

Which statement is NOT part of the cell theory?

Back

Cells form spontaneously.

Front

What is the function of the cell membrane?

Back

The cell membrane controls what goes in and out of the cell.

Front

What is the primary function of ribosomes?

Back

Ribosomes are responsible for protein synthesis.

Front

Which biomolecule speeds up chemical reactions and provides structure in the body?

Back

Proteins speed up chemical reactions and provide structure.

Front

Which structure is NOT found in both prokaryotes and eukaryotes?

Back

The nucleus is not found in prokaryotes.

Front

What is the role of proteins in the cell?

Back

Proteins perform various functions including catalyzing biochemical reactions, providing structural support, and regulating cell processes.

Front

What are the main components of the cell membrane?

Back

The cell membrane is primarily composed of a phospholipid bilayer, proteins, cholesterol, and carbohydrates.

Front

What is the function of the cytoplasm?

Back

The cytoplasm is the gel-like substance within the cell that holds organelles and is the site of many metabolic processes.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.